On 21/07/2022 11:34, Marcus Folkesson wrote: > Some shift registers (74hc4094 for example) has a strobe signal to latch > data from the serial input to the parallel output. > > Add an optional strobe-gpios property to support those chips. > > Signed-off-by: Marcus Folkesson <marcus.folkesson@xxxxxxxxx> > --- > .../devicetree/bindings/gpio/fairchild,74hc595.yaml | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml > index a99e7842ca17..9893df9ae22c 100644 > --- a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml > +++ b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml > @@ -14,6 +14,8 @@ properties: > enum: > - fairchild,74hc595 > - nxp,74lvc594 > + - ti,cd54hc4094 > + - ti,cd74hc4094 > > reg: > maxItems: 1 > @@ -33,6 +35,10 @@ properties: > description: GPIO connected to the OE (Output Enable) pin. > maxItems: 1 > > + strobe-gpios: > + description: GPIO connected to the STROBE pin > + maxItems: 1 This should be disallowed (in allOf:if:then) for variants which do not support it (or do not have even STROBE pin). Best regards, Krzysztof
